: This is the source or uploader's "tag." While HDKing is a manufacturer of action cameras and bike vlogging equipment, in this file string format, it functions as a website watermark or a distribution portal for high-definition cycling-related media.
: The year of release or the specific season of the content. RRS16 E 1 To 04 -2025- www.HDKing.Bike 720p HE...
Likely stands for Road Racing Series , with "16" potentially referring to a season number or specific series designation. : This is the source or uploader's "tag